diff --git a/collects/scribblings/reference/cont.scrbl b/collects/scribblings/reference/cont.scrbl
index 49c09e43a5..41df0582ed 100644
--- a/collects/scribblings/reference/cont.scrbl
+++ b/collects/scribblings/reference/cont.scrbl
@@ -95,7 +95,7 @@ argument, if supplied, is used when printing the prompt tag.}
 
 @defproc[(default-continuation-prompt-tag) continuation-prompt-tag?]{
 
-Returns a constant prompt tag for a which a prompt is installed at the
+Returns a constant prompt tag for which a prompt is installed at the
 start of every thread's continuation; the handler for each thread's
 initial prompt accepts any number of values and returns. The result of
 @scheme[default-continuation-prompt-tag] is the default tag for more